Oil-burner



on a. WALLACE.

0.1L BURNER. I I APPLECATION FILED MAR. 13| 1920.

Law? Patented Julie 7, 1921..

Fig K stares K. W- LLACE, OF OAKLAND, CALIFORNTA, ASSIG-NOR 01EONE-HALETO SAMUEL 4 H. CHAMBERS, OF OAKLAND, CALIEGENIA.

OIL-BURNER;

nssosov.

Application filed March 13,

To all whom it may concern Be it known that T, CLYDE K. NALLAon, acitizen of the United States, residing at Qakland, in the county ofAlameda and'State of California, have invented new and usefulImprovements in Oil-Burners, of which the following is a specification.

The primary object of the invention is to provide a relatively simple,inexpensive, strong and durable oil burner which will cause a morethorough combustion of oil and operate at a relatively low oilconsumption to produce a hot effective fan like flame, the constructionand operation of the burner being such that carbon accumulations in oron the burner are prevented.

The invention possesses other advantages and features, some of which,with the foregoing will be set forth at length in the followingdescription where I shall outline in full that form of the inventionwhich I have selected for illustration in the drawings accompanying andforming a part of the present specification. In said drawings 1 haveshown one form of the construction of my invention but it is to beunderstood that T do not limit myself to such form, since the inventionas expressed in the claim may be embodied in a plurality of forms.

Referring to the drawings Figure 1 is a side elevation of the burner ofmy invention.

, Fig. 2 is a sectional view taken on line 22 of Fig. 1. c

Fig. 3 is a front elevation of the burner.

The present embodiment of the burner comprises an elongated cylindricaltubular cast iron body 1 providing a mixing chamher 2. Oneend of thebody is closed by a reduced end portion 3 formed so as to provide aconical end 4 for the chamber 2. At the apex of this end is a small fueloutlet passage or opening 5 and in the same horizontal plane therewithon opposite sides thereof are passages 6 and 7, which passages divergetoward their outer ends. These three passages open into the chamberadjacent the apex of the conical endi so as to direct the fuel from theburner in a flat fan like spray. The body is cast in one piece and isrelatively heavy and thick so as to Specification of Letters Patent.

Patented June '7, 1921.

1920. Serial NO. 365,446.

withstand the heat and prevent burning off of the tip thereof.

The inner end of the body is open, internally screw threaded as at 8 andreceives the screw threaded reduced portion 9 of aplug 10, the bodyportion of which plug is flush with the outer surface of the body 1. Ashoulder 11 on the plug engages the end of the body 1. The plug 10 isprovided with an air or steam passage 12 and an oil passage 13 extendingtherethrough. The inner ends of these passages are screw threaded andreceive nozzles 1e and 15 respectively. The nozzle 1&- is straightwhereas the nozzle 15 for the oil is curved as at 16 so as to dischargein front of the nozzle 1%. The outer ends of the passages 12 and 13 areenlarged and threaded as at 17 and receive oil and air or steam feedpipes 18 and 19 respectively.

In the operation of the burner air or steam under high pressure isconducted from a source of supply not shown through the pipe 19 andpassage 12 to the nozzle 14: and is directed through the chamber 2 bysaid nozzle, toward the conical end i.

Oil is likewise delivered under high pressure to the nozzle 15 throughthe pipe 18, passage 13 and across the path of the air or steam. The oilin being discharged into the stream of air issuing from the nozzle 14will be swirled around in the chamber 2, thoroughly atomized so that itwill pass into the conical end 4 and out through the outlet passages 5,6 and 7 in a finely divided vaporous combustile state and may be easilyignited so as to burn without smoke. With this finely divided highlyvaporized mixture, a hot flame will be provided at a low fuelconsumption. By having the air and oil fed into the chamber 2 under highpressure and forming the chamber with a conical outlet end provided withsmall outlets 5, 6 and 7 I provide for perfect combustion of the oil anddue to the force with which the oil and air are projected into andthrough the cham her 2 no carbon will form in the chamber or on theburner tip.

I claim 2- An oil burner embodying in its construction a one-piecetubular body portion closed except for small outlet passages at one endand having a screw threaded opening at its other end, a flanged plughaving screw threads engaging with the screw threads of said opening,the flange of said plug being flush with the body, and means extendingthrough the plug for discharging oil and an atomizing fluid into saidbody, said body being in a conical form interiorly at the end thereof inwhich the outlet passages are pro- 10 vided, one of said outlet passagesbeing in line With the apex of said conical portion and the otheroutlets being disposed on opposite sides of said apex, said body portionhaving a reduced tip portion through which 15 portion the outletpassages are formed.

CLYDE K. WALLACE.

